Walker 55698 Catalytic Converter - Rear

EPA Direct-Fit Catalytic Converter for Malibu

Walker EPA 55698 is a direct-fit catalytic converter built for specific rear underbody applications on select Chevrolet Malibu models. It is engineered for OBDII-era vehicles and uses a stainless steel body with a ceramic substrate for EPA-compliant replacement performance.

• Direct-fit design for specific applications
• Rear underbody converter position
• Stainless steel body with ceramic substrate
• 2-bolt welded flange inlet and outlet connections
• EPA-compliant replacement for federal-emissions vehicles
• Fits 2013-2015 Chevrolet Malibu, rear
• Fits 2016 Chevrolet Malibu Limited, rear

Walker EPA Product Line

Walker EPA converters are built for import and domestic OBDII vehicles and are intended to deliver a direct replacement solution that aligns with federal emissions requirements. Part number 55698 follows that approach with a specific-fit layout for Malibu rear exhaust applications.

Detailed Product Overview

This catalytic converter uses a round stainless steel body with an overall length of 58.25 inches, a 2.180-inch inlet outside diameter, and a 2.5-inch outlet outside diameter. The underbody configuration and welded flange connections support a factory-style exhaust layout, while the ceramic substrate is selected for emissions conversion in EPA applications. This part cross-references AP Exhaust 643157 for the same application.

Common Issues This Part Addresses

• Failed emissions test due to a worn or inefficient converter
• Check engine light related to catalyst efficiency codes
• Exhaust restriction from a deteriorated substrate
• Rust or damage in the original rear converter assembly
• Exhaust leakage at the converter connection points

Installation Notes

Compatible With 2013-2015 Chevrolet Malibu, rear, and 2016 Chevrolet Malibu Limited, rear. Exhaust gasket is recommended, and additional parts 31532 and 31640 are listed as needed to complete installation. This converter uses a 2-bolt welded flange inlet and outlet, and the appearance may differ from the original equipment pipe. It is not legal for sale or use in California and other CARB-compliant states; it is legal in New York and Maine on EPA federal-emissions vehicles only.

Quality Assurance

Walker EPA 55698 is designed to comply with EPA standards for approved federal-emissions applications. The stainless steel construction and direct-fit configuration support consistent replacement quality for the specified Chevrolet Malibu fitments.